In many countries across Asia, Europe, and South America, bidets are a popular alternative to toilet paper. According to Doctor Trisha Pasricha at the Harvard T.H. Chan School of Public Health in the US, many people are concerned about this device due to a lack of understanding of its principle.

Most bidets do not draw water from the toilet bowl itself but use the household water supply system. The nozzle is positioned beneath the seat, directing a stream of water upwards, completely separate from the water surface below, ensuring waste cannot splash back onto the body.

Doctor Pasricha cites a study indicating that bidet users have 10 times less bacteria on their hands compared to those who use toilet paper, due to reduced direct contact. Using water provides more thorough cleaning, which is why the medical community encourages its use.

Illustrative photo: Pexels

However, users should not overuse bidets. A study published in 2010 in the US National Library of Medicine showed that frequent bidet users had a lower percentage of beneficial Lactobacillus bacteria compared to non-users (57% versus 91%).

Experts warn that spraying with excessive pressure or prolonged duration can cause irritation of the anal mucosa.

Researchers recommend users start with low water pressure, prioritize warm water, and spray for only 10-20 seconds. Doctor Neal H. Patel in California, US, advises wiping the nozzle tip with a disinfectant cloth every one to two weeks. After washing, users can use a small amount of toilet paper to pat dry or activate a warm air drying function.

From an environmental perspective, each bidet use consumes about 0,5 liters of water. In contrast, producing one roll of toilet paper consumes 2,7 kg of wood and 22 liters of water.

Nhat Minh (According to Washington Post, Pubmed)